baber/WOPTO huggingface dataset:
Patent GB-602201-A (GB)
Title: Improvements in steam engine crankshaft bearing support
IPC: F16C9/02
Filed: 1943-12-01
Abstract: 602,201. Bearings. AJAX IRON WORKS. Dec. 1, 1943, No. 28237/45. Convention date, June 8. Divided out of 602,165. [Class 122 (iii)] The bearings of a crank-shaft 42 for operating valves, which may be as described in Specification 602,165, are mounted in depending supports 43 bolted to the underside of box-like housings 251 inserted in the top of the valve casing 41 and secured thereto by an outstanding flange 252. The mating faces of the flange and casing and of the box 251 and support 43 are accurately machined and the centre portions of the bottoms of the boxes are raised to reduce the area to be treated.
Patent GB-171023-A (GB)
Title: Improvements in or relating to baby carriages
IPC: B62B9/18
Filed: 1920-10-06
Abstract: 171,023. Craven, A. Oct. 6, 1920. Guiding vertical play; springs, mounting bodies on.-The body a of a bassinet babycarriage is mounted on pairs of springs arranged near each end of the wheel axles b<1>, one spring e<1> of each pair lying between the bottom of the body and a bar c which connects one axle to the other, and the other spring e<2> lying between the bar c and a laterally-extending portion of a bracket f secured to the body. Lateral displacement of the springs is prevented by a spindle g and cups c<2>, and the cups may be lengthened to form telescopic casings for the springs. The invention is stated to be particularly applicable to the babycarriages described in Specification 168,525, [Class 108 (i), Road vehicles, Body details &c. of].
Patent GB-882730-A (GB)
Title: A profile milling machine suitable for performing engraving operations
IPC: B44B3/06
Filed: 1958-09-05
Abstract: 882,730. Copy-milling. GAUTHIER G.m.b.H., ALFRED. Sept. 5, 1958 [Sept. 12, 1957], No. 28627/58. Class 83 (3). A profile milling or engraving machine comprises workheads 2a-4a indexed by an electric torque-motor 10, a rotatable index plate 17 carrying stops 18 co-operating with a stationary abutment 19 to stop the workheads after indexing, and means 23 to release plate 17 for an indexing step terminated by the engagement of another of its stops with abutment 19. Letters, numbers, &c., may be engraved on the workpieces (not shown) by milling cutters on a vertically and laterally movable support (not shown). The workpieces are clamped on the workheads, which are carried by a support 1 secured in angularly adjusted position about the axis of a shaft 14 by a lock-nut 31. The support 1 may be mounted on a laterally-movable table (not shown) so that movements in three mutually perpendicular directions are provided for the engraving operation. Between operations, the workheads are indexed by the constantly ener gized motor 10, which drives index shaft 14 through a belt 13, the shaft being fixed to indexdisc 17 and indexing the workheads through helical gears 15, 16. The stops 18, in the form of pins slidable in holes or bushings in disc 18, have the projecting end of the operative stop pushed into the disc by a slide or (as shown) a lever 22 to free the disc for an index step. The lever is moved against a return spring (not shown) by a plunger 23 engaging a lever'21 on a shaft 20 carrying lever 22. Movement of the plunger is by a slide 6 supporting an adjustable, inclined track 7 which effects the vertical movements of the tool-head. Movement of slide 6 in direction " A " raises the tools from the work and releases the operative stop-pin 18. A stationary face-cam 26a returns the pins to operative position as they are carried around by the disc.
Patent GB-609732-A (GB)
Title: Device for supplying and emptying a group of two hydraulically compressed clutches
IPC: F16D48/02
Filed: 1945-10-29
Abstract: 609,732. Hydraulic friction clutch control. SOC. DES BREVETS KEGRESSE, S. E. K. Oct. 29, 1945, No. 28642. Convention date, Dec. 23, 1943. [Class 80 (ii)] Two slide valves 7, 7<1> each control the inlet 16, 16<1> and the outlet 17, 17<1> of two hydraulically-operated friction clutches 2, 4, 5 and 2, 4<1>, 51 respectively and are mechanically controlled by coupling means 11 which reverses the movement of one valve relative to the movement of the other. The valves 7, 71 are arranged in guides 8, 81 in the cover 3 of a group of two clutches rotating with a fly-wheel 1 and a fixed plate 2, the drive being effected by the two pistons 4, 41, which cause the engagement of the discs 5, 5<1> respectively. The valves are returned to the neutral position by the springs 9, 9<1> acting through bushings 10, 10<1> adapted to abut against the inner ends of the guides 8, 81 so that the springs are preloaded, and are mechanically connected by the lever 11, pivoted at 12, which bears on the top of each valve. The supply of pressure fluid through the passage 15 moves the valve 7 upwards to uncover the port 18 leading by the passage 16 to the piston 4. The valves remain in the position with the port 18 partially open and valve 71 moved insufficiently to uncover the exhaust port 191 from the passage 171 leading from the piston 41, until the chamber of the piston 4 is full of fluid and the pressure in the valve chamber rises and the valve 7 moves upwards. As the valve 7 moves upwards, the lever 11 moves the valve 7<1> downwards to allow the piston 41 to be de-energized through the exhaust port 19<1>, thus the clutch 4<1>, 51 is not disengaged until the clutch 4, 5 is engaged. To counteract the effects of centrifugal force on the valves due to their inequality of distance from the centre of rotation, the lower side of the lever 11 is formed with a wide V-notch which coacts with a ball 14 to provide equilibrium under all conditions. In a modification the two valves are mounted axially of the flywheel and are coupled by two springs which urge the valves outwards and which coact at their inner ends on a third axially floating slide valve.
Patent GB-504360-A (GB)
Title: Improvements in aeroplanes
IPC: B64C23/00
Filed: 1937-10-21
Abstract: 504,360. Aircraft wings. SPEARPOINT, H. G., and STANWAY, H. Oct. 21, 1937, No. 28651. [Class 4] Air is collected by one or more intakes disposed in the slipstream of the airscrew or airscrews of an aircraft, the intakes being divided into concentric orifices each of which communicates with one or more sections of a continuous slot extending along the entire length of the wings close to their leading edges. A streamlined housing b is provided with visor shutters b<3> adapted to control the flow of air thereinto. Communicating with the housing are three ducts which extend along the leading edge and terminate at the housing end in concentric openings. The ducts are of differing lengths and taper toward the wing tip. The uppermost duct b<2> communicates with a longitudinal slot a over the root portion of the wing, the duct b<1> over the middle portion of the wing and the lowermost duct over the tip portion. The shape of the nosing defining the slot is stated to be such that the air issuing therefrom increases the lift of the wing. Heated air maybe supplied by air entering a cowl c<1> surrounding an exhaust collector ring c<2>.
Patent GB-173349-A (GB)
Title: Improvements in atomizers
IPC: B05B7/12
Filed: 1920-10-09
Abstract: 173,349. Rogers, F. H., (Matthews & Bro., Inc., W. N.). Oct. 9, 1920. Piston valves. - An atomizer, more particularly for spraying paint, insecticides, &c., comprises a casting 1 and a nozzle fed by two ducts 1<a>, 1<b> formed in the casting. Means such as screw valves 13, 14 engaging in threaded openings in the casting are provided for independently regulating the flow of fluid through the ducts 1<a>, 1<b> and an operating valve 3 is provided for controlling the passage through both ducts. The valve 3 comprises a piston having annular grooves 3<a>, 3<b>, a spring 4, and a press-button 5.
Patent GB-279887-A (GB)
Title: Improvements in electric battery charging systems
IPC: H02M7/15
Filed: 1927-10-28
Abstract: 279,887. British Thomson-Houston Co., Ltd., (Assignees of Hull, .4. W.). Nov. 1, 1926, [Convention date]. Charging batteries; regulation automatic. -The charging current of a battery fed by a vapour electric rectifier is automatically controlled by a grid subject to a potential bias depending upon the state of charge of the battery. Fig. 1 shows a battery 1, which may be simultaneously connected to a load, charged by the current between cathode 9 and anodes 5, 6 of a rectifier connected through a transformer 3 to supply mains 2. The cathode is heated by a transformer 10. Grids 7, 8 are connected to taps 13, 14 on the secondary transformer 3 so that their potential is the resultant of battery potential, the potential of half the secondary of transformer 10 and the potential of the tapped portion of transformer 3, the two last being opposed to that of the battery. This is adjusted so that at full charge on normal supply volts the maximum A.C. potential in the grid circuit is equal to the battery volts and no charging current passes. With suitable rectifiers the tappings 13, 14 may be dispensed with and the grids connected to the negative terminal of the battery. Fig. 4 illustrates a method of controlling charging current involving displacing the phase relationship between anode and grid voltages by means of a capacity 19 in series with a resistance 18 across which the transformer 10 is connected. The grids of the rectifier may have unequal mesh and the transformer taps 13, 14 may be unsymmetrical.
Patent GB-954858-A (GB)
Title: Switching circuit
IPC: H03K17/16
Filed: 1960-08-19
Abstract: 954,858. Transistor gating circuits. SPERRY RAND CORPORATION. Aug. 19, 1960 [Aug. 19, 1959], No. 28781/60. Heading H3T. [Also in Division G4] A transducer which both provides and receives signals, such as a combined read-write head of a magnetic digit storage drum, is connected to input and output terminals respectively through solid state gating circuits controlled by a control signal applied to a circuit shunting the transducer, and one level of the control signal opens one gate and closes the other and another level reverses these conditions. In the Fig. 2, digital signals are fed through the secondary winding of the transformer T 1  and a gate 100 to a combined readwrite head 300 and signals derived from the head in the read condition are fed through a gate 101 to an output transformer T 2 , the gates being controlled by a control signal from 102. When the control line 102a is positive diodes 208 and 212 conduct, rendering diodes 202 and 204 non-conducting, closing the reading gate. The positive control signal is also fed through diodes 208 and 212 to the collector electrodes c 1 , c 2  of bi-directional transistors 216, 218. This renders the transistors conducting so that input signals can pass through the gate to the head. A small positive bias developed across a diode 238 from a source connected to a resistor 240 and this is applied to the bases of the transistors through diodes 224 and 226. When the control signal 128 is negative, diodes 208 and 212 are cut off. Diodes 202 and 204 are rendered conducting by the current through resistors 210 and 214 so that signals picked up by the head are fed to the output transformer T 2 . The collectors of the transistors are now biased negatively so that they become non-conducting and the head is decoupled from the input circuit. A larger negative control voltage is also supplied to a line 102b under these conditions to cause diodes 244 and 246 to effectively short-circuit the input circuit and to provide a negative voltage at the emitters of the transistor so as more effectively to isolate the input circuit from the head.
Patent GB-629079-A (GB)
Title: Improvements relating to ironing or calendering machines
IPC: D06F67/08
Filed: 1947-10-29
Abstract: 629,079. Ironing-machines. HAYDOCK, J. Oct. 29, 1947, No. 28837. [Class 138 (ii)] In an ironing and calendering machine each calendering roll has a bed made of flexible metal plate, preferably steel plate, bent to conform with the bottom portion of the cylindrical contour of the roll, sheet metal being welded to the rear side of the plate to provide separate channels extending across the underside thereof, for the flow of steam for heating the bed. A flexible metal sheet bed b is held against a machine roll a by pneumatic or hydraulic pressure from cylinders f applied to the upper edges of the bed. Each bed b has a corrugated metal sheet d welded to its underside to form 'channels e, so interconnected by pipes or passages (not shown) to allow steam to pass from channel to channel and back and forth across the bed. In a multiple roll machine the beds are connected by a curved metal sheet c. The connecting sheet c is heated by steam passing through copper tubes g secured to its underside. The steam heating system may have suitable drain connections.
Patent GB-1407516-A (GB)
Title: Production of a protein-vitamin concentrate
IPC: A23K1/00
Filed: 1973-06-19
Abstract: 1407516 Foods containing yeast; fodder NGVEX RT 19 June 1973 [20 June 1972] 28969/73 Heading A2B [Also in Division C6] A protein- and vitamin-rich yeast biomass, suitable for direct human consumption or for fodder, is produced by proliferation of an adapted yeast (i.e. a yeast that has undergone physiological adaptation by previous growth on fats or oils and therefore has enzyme systems active in their use) in a fermenter with an aerated, acidic nutrient medium containing as principal or sole carbon and energy source one of more animal or vegetable fats or oils or natural degradation products thereof (e.g. rancid fat), and subsequent separation of the yeast biomass. The biomass may be mixed with other food or fodder and in examples the biomass is employed in the preparation of potato croquettes and meat loaf.
Patent GB-650369-A (GB)
Title: Improvements relating to stand-by electrical power-supply systems
IPC: H02J9/06
Filed: 1948-11-09
Abstract: 650,369. Stand-by supply systems; automatic control of voltage. HARMER, H. M., and COOK, F. J. [Class 38 (iv)] A condenser Cl is alternately switched across a stand-by battery B and a D.C. load LD to maintain the voltage across the latter upon conditions of failure, or low voltage, of a normal supply source, which may comprise a transformer T, rectifier WB1 and smoothing filter C2, SL1, SL2, SC. Switching is effected by a balanced armature power relay PR under the control of a sensitive relay SR having a winding O responsive to the load voltage and which normally provides a flux balancing that due to further windings M, N excited from the battery through constant current means, such as a barretter BR. The condenser C1 is thus normally maintained on charge from the battery over rectifier W1, the upper of the change-over contacts S1, S2 of relay PR, a locking winding P of relay SR and an inductor L1. The function of the last is to prevent the flow of charge, or discharge, current whilst relay PR is changing over, thereby avoiding wear on its contacts. Upon fall of load voltage, windings M, N overcome winding O of relay SR, which changes over to contacts and reverses the excitation of the winding Q of relay PR. Contacts- S1, S2 of the last relay change over, in consequence, and condenser C1 discharges through inductor L1 into the load circuit and temporarily raises its voltage, the discharge current passing through locking winding P of relay SR to delay the return of its contacts to their initial position by the voltage rise. This, however, eventually occurs, followed by change-over of relay PR and recharging of the condenser. After a time, dependent upon the capacity of the condenser and the value of the load, the voltage falls (unless restored by the normal source) to a value at which relay SR again actuates and the cycle repeats. The inductor L1 is loaded by a rectifier bridge WB2 connected to the load circuit to prevent excessive voltage rise on the condenser, when supplying the load, due to the oscillatory nature of the discharge circuit. The condenser charges, dur ng standby operation, to a voltage equal to about twice that of the battery and this voltage is maintained during normal operation by a winding X (or transformer T) and a rectifier W3. A number of condensers may replace the single condenser C1, these being charged in parallel and discharged in series, or vice versa, according to the voltage of the battery in relation to that normally required by the load. The electromagnetic relays may be replaced by electronic relays. Relay SR may also serve to start up further stand-by plant upon failure of the main source, the condenser discharge system only supplying the load during the interim period. Specification 493,362 is referred to.
Patent GB-782327-A (GB)
Title: Improvements in or relating to magnetic tape recording reproducing heads
IPC: G11B5/127
Filed: 1955-10-12
Abstract: 782,327. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 12, 1955 [Oct. 15, 1954], No. 29071/55. Class 37. [Also in Group XXXVIII] A magnetic tape recording reproducing head comprising a ferromagnetic, e.g. ferrite, core 1, 2, having a gap 3 along which a recorded tape 4 is passed includes at least one Hall-plate 5 so disposed that a magnetic field set up by the tape in the core extends transversely to the main faces of the plate whereby upon an electric excitation current being passed through the plate transversely to the direction of the magnetic field an electric field of strength determined by those of the excitation current and of the magnetic field is set up within the plate transversely to the plane through the respective directions of the excitation current and mag. netic field. A formula is given in the Specification by which a Hall-plate which is suitable for a reproducing head is selected. Ribs 6 may be provided for cooling the Hall-plate and core. The Hall-plate may be ground and of germanium, silicon or indium-antimonide, or alternatively applied by vacuum evaporation to one or both core parts 1, 2.
Patent GB-698484-A (GB)
Title: Improvements in and relating to wrenches and spanners
IPC: B25B7/04
Filed: 1949-11-14
Abstract: 698,484. Wrenches and spanners. GRANT, E. D., and WARD, W. L. Oct. 13, 1950 [Nov. 14. 1949], No. 29112/49. Class 61 (iii). , In a slidable jaw wrench or spanner, the fixed jaw 12 which is carried by the handle 10, has mounted thereon a freely slidable wedge shaped, serrated jaw face 34 which is adapted on outward movement to reduce the effective jaw interspace. The member 34 is provided on the underside with a dovetailed groove which engages with a spline 32 extending from the front edge of the jaw 12 part of the way towards the inner edge, outward movement of the member being limited by a pin 36 thereon. The shank 16 of the adjustable jaw 15 is slidable in a tapered aperture in the handle 10, a locking wedge 26 being provided in the clearance space between the shank and the inclined wall of the aperture. A rack 28 on the wedge is adapted to coact with a rack 24 provided on the shank. The inclined wall of the aperture is stepped transversely at 20, 22, Fig. 3, to allow lateral and rearward displacement of the wedge to unlock the shank. In a modification wherein the shank is unlocked solely by lateral displacement of the wedge, the shank is stepped by providing a rack thereon of width not greater than half that of the shank. The Provisional Specification describes also a spanner having slidable gripping members on both jaws.
Patent GB-1314105-A (GB)
Title: Devices for detaching in a mould the bottom scrap of a hollow thermoplastics body manufactured by extrusion-blowing
IPC: B29C49/50
Filed: 1970-06-16
Abstract: 1314105 Blow moulding; flash removal SIDEL SA 16 June 1970 [18 June 1969] 29178/70 Heading B5A Bottom flash is removed from an extrusionblow-moulded article by a blade mounted on at least one blow mould half, pivoted about an axis parallel to the axis of the extrudate and biased to a rest position in which it extends along the joint plane of the mould parts, the blade being coupled to the other mould part only during an initial stage of the mould opening so as to pivot and displace the bottom flash in a direction perpendicular to the axis of the extrudate and then being returned to its rest position by the biasing means during a second stage of the mould opening movement. As shown in Fig. 6, mould halves 1, 2 carry blades 8, 9 pivoted thereto at 15, 16. The blades 8, 9, are held together on mould opening by metal armatures 22, 23 and permanent magnets 21, 19, the blades slipping relatively along one another. After flash 3b is removed, the angular movement of the blades is limited by adjustable nuts 31, 32 on rods 26, 27, the tension springs 24, 25 returning the blades to their normal position after separation. In other embodiments, the blades are held together during mould opening by corresponding projections and recesses (Figs. 7-12, not shown) or pneumatically (Figs. 13, 14, not shown) until hooks on blades engage projections on the mould halves.
Patent GB-332463-A (GB)
Title: Improvements relating to nuts
IPC: F16B39/32
Filed: 1929-09-26
Abstract: 332,463. Rosset, P. Sept. 26, 1929. Locking nuts; over-tightening, preventing.-In a means for preventing overtightening and also for locking a nut, a groove is provided in the bottom face and contains a split tapped ring. The ring 2 is split at 5 and provided with a tapered recess 3 the end of which engages a pin 4 partly held in the body of the nut 1. If the ring is aranged so that the slit 5 is forward of the pin 4 having regard of the direction of rotation 6, as in Fig. 2, for tightening, then on overtightening the pin travels along the recess 3 and forces the ring 2 against the bolt. If however, the ring is reversed and the slit 5 is behind the pin 4 having regard to the direction of rotation, as in Fig. 3, then when the nut has been tightened on slacking back the pin travels along the recess 3 and tightens the ring on to the bolt. A hole 7 is provided through the nut so that a pin may be inserted for removing the nut from the bolt when it is used as a locking nut. In a modification the split ring may be formed integral with a thin hexagonal washer of the same size as the nut.
Patent GB-1102744-A (GB)
Title: Synthetic baseline generator for automatic chromatograph integration system
IPC: G01N30/86
Filed: 1965-07-09
Abstract: 1,102,744. Electric selective signalling. ESSO RESEARCH & ENGINEERING CO. 9 July, 1965 [21 July, 1964], No. 29252/65. Heading G4H. The effect of overlapping of peaks in gas chromatography on peak area is corrected automatically. The signal representing concentration from the gas chromatography apparatus is digitized into a frequency-significant signal which is gated to a counter between successive valley bottoms to measure peak area, the counter being read out and reset as each valley bottom is detected by the frequency becoming zero. At each valley bottom also, the frequency signal is counted for a predetermined interval to obtain a measure of the valleybottom height. From these data, a computer corrects the area data for peak overlap.